CN116532238B - Flue gas treatment device for ferrochrome production - Google Patents
Flue gas treatment device for ferrochrome production Download PDFInfo
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- CN116532238B CN116532238B CN202310827974.6A CN202310827974A CN116532238B CN 116532238 B CN116532238 B CN 116532238B CN 202310827974 A CN202310827974 A CN 202310827974A CN 116532238 B CN116532238 B CN 116532238B
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000003546 flue gas Substances 0.000 title claims abstract description 71
- 229910000604 Ferrochrome Inorganic materials 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 76
- 238000011084 recovery Methods 0.000 claims abstract description 47
- 239000007789 gas Substances 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 24
- 239000010439 graphite Substances 0.000 claims abstract description 24
- 238000004062 sedimentation Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 62
- 239000002245 particle Substances 0.000 claims description 34
- 238000010408 sweeping Methods 0.000 claims description 22
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 238000007790 scraping Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000002923 metal particle Substances 0.000 abstract description 37
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002918 waste heat Substances 0.000 abstract description 6
- 230000005653 Brownian motion process Effects 0.000 abstract description 4
- 238000005537 brownian motion Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000008187 granular material Substances 0.000 description 8
- 238000005192 partition Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 6
- 239000011651 chromium Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005307 ferromagnetism Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
- B01D49/003—Separating dispersed particles from gases, air or vapours by other methods by sedimentation
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a flue gas treatment device for ferrochrome production, which comprises a descending gas circulation device, a separation recovery device, a collection bin and a control module. The invention belongs to the field of flue gas treatment, in particular to a flue gas treatment device for ferrochrome production, which aims to solve the problem that the traditional equipment cannot recover metal particles in flue gas, adopts a mode of reducing the temperature by reducing the Brownian motion and electromagnetic adsorption, and is provided with a sedimentation type gas circulation device and a separation recovery device, so that the technical effect of separating the metal particles from the flue gas is realized, and the technical problem that the traditional equipment cannot separate and collect the metal particles from the flue gas is solved; according to the problems that the existing equipment is low in heat conversion efficiency and easy to rust after being contacted with water for a long time, graphite is adopted as an intermediate heat conducting substance, and a graphite heat conducting layer is arranged, so that the heat conducting efficiency is improved, the internal metal can be effectively prevented from being oxidized and rusted, and the technical problems that a traditional waste heat recovery device is easy to rust and low in heat conductivity are solved.
Description
Technical Field
The invention belongs to the technical field of flue gas treatment, and particularly relates to a flue gas treatment device for ferrochrome production.
Background
Ferrochrome refers to iron alloys having a relatively high chromium content, and iron alloys having a chromium content of greater than 10% are generally classified as ferrochrome. The ferrochrome mainly consists of elements of chromium, iron, carbon and the like, and the main process is an electric furnace steelmaking method or a chemical reduction method. Ferrochrome is an important additive in steel production, and can obviously improve corrosion resistance, wear resistance, oxidation resistance and high-temperature strength of steel. Meanwhile, the ferrochrome can also improve the hardness and elasticity of the steel and increase the fracture toughness of the steel, so that the ferrochrome is widely applied to the fields of light industry, chemical industry, aviation, aerospace, electronics and the like and becomes one of important raw materials in modern industry.
When the traditional ferrochrome is smelted and produced, a large amount of high-temperature flue gas is discharged, and because a large amount of metal particles are carried in the flue gas, if the flue gas is directly discharged, serious influence is caused on the surrounding ecological environment, resource waste is caused, in addition, cavitation phenomena (cavitation corrosion damage phenomena of fluid on the metal surface contacted with the fluid under the conditions of high-speed flow and pressure change) of the inner wall of a flue gas pipeline are aggravated by the metal particles, so that the service life of the pipeline is shortened; the existing equipment cannot collect metal particles in time after separating the metal particles, so that a pipeline is blocked and the temperature rises, and the use of the equipment is affected; in addition, in the smelting process, waste heat is lost along with flue gas, and the traditional waste heat recovery mode adopts the vaporization of water to absorb heat, but the long-time contact of metal inner wall and water can lead to oxidation rust, and heat conversion efficiency is lower.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the flue gas treatment device for ferrochrome production, and in order to solve the problem that the traditional equipment cannot separate and recycle metal particles in the flue gas, a manner of reducing Brownian motion and electromagnetic adsorption by adopting speed reduction and temperature reduction is adopted, and a sedimentation type gas circulation device and a separation and recovery device are arranged, so that the technical effect of separating the metal particles from the flue gas is realized, and the technical problem that the traditional equipment cannot separate and collect the metal particles from the flue gas is solved; according to the problems that the existing equipment is low in heat conversion efficiency and easy to rust after being contacted with water for a long time, graphite is adopted as an intermediate heat conducting substance, and a graphite heat conducting layer is arranged, so that the heat conducting efficiency is improved, the internal metal can be effectively prevented from being oxidized and rusted, and the technical problems that a traditional waste heat recovery device is easy to rust and low in heat conductivity are solved.
The technical scheme adopted by the invention is as follows: the invention provides a flue gas treatment device for ferrochrome production, which comprises a sedimentation type gas circulation device, a separation and recovery device, a collection bin and a control module, wherein the sedimentation type gas circulation device is arranged on the separation and recovery device, the collection bin is arranged on one side of the separation and recovery device, and the control module is arranged on the other side of the separation and recovery device.
Further, the sedimentation type gas circulation device comprises a gas circulation outer bin and a concentric array type cooling bin, the gas circulation outer bin is arranged above the separation recovery device, the concentric array type cooling bin is fixedly connected with the gas circulation outer bin, further, an air inlet channel is arranged in the center of the concentric array type cooling bin, a steam outlet is arranged on the right side of the top of the concentric array type cooling bin, a water inlet is arranged on the left side of the top of the concentric array type cooling bin, pure water is injected into the water inlet, the heat of flue gas is absorbed by the concentric array type cooling bin to enable the pure water to be vaporized, and the vaporized water vapor is discharged through the steam outlet and can be recycled again to take away the heat of the flue gas.
As a further preferred mode of the invention, the graphite heat conducting layer is arranged in the concentric array cooling bin, the graphite has ultrahigh heat conducting performance and can be contacted with circulating pure water and rapidly produce high-temperature steam, meanwhile, the graphite is used as an intermediate substance, so that the pure water can be prevented from being directly contacted with the metal inner wall of the concentric array cooling bin, the oxidation and rust of the inner wall are avoided, the thermal expansion coefficient of the graphite is also small, and the equipment damage caused by volume expansion due to heat conduction can be avoided.
Further, an air outlet channel is arranged on the circumferential side wall of the gas circulation outer bin, and the flue gas subjected to cooling and metal particle recovery is finally discharged from the air outlet channel.
Further, separation recovery unit includes bottom sprag storehouse, array partition storehouse, electromagnetism absorption recovery unit and granule conveyer, the outer storehouse below of gas circulation is located in the bottom sprag storehouse, the bottom sprag storehouse top is located to the array partition storehouse, electromagnetism absorption recovery unit locates on the bottom sprag storehouse, granule conveyer locates in the bottom sprag storehouse, adsorbs the collection with metal particle through electromagnetism absorption recovery unit to in carrying the collection storehouse through granule conveyer, the flue gas is in enclosure space in the separation process, avoids revealing and separates metal particle simultaneously.
The electromagnetic adsorption recovery device comprises an electromagnetic adsorption device, an adsorption base, a sliding platform, a limiting circular rail, a sweeping scraping arm, a sliding adsorption system, a horizontal bearing, a rotary carrying gear, a traction permanent magnet, an output gear, an output rotating shaft and a particle drainage bin, wherein the adsorption base is arranged in a bottom supporting bin, the electromagnetic adsorption device is arranged above the adsorption base, the particle drainage bin is arranged at the center of the electromagnetic adsorption device and the adsorption base, the sliding platform is arranged on the electromagnetic adsorption device, the sliding platform is simultaneously arranged on the bottom supporting bin, the limiting circular rail is arranged on the sliding platform, the sweeping scraping arm is rotationally arranged on the limiting circular rail through the limiting circular rail, the sliding adsorption system is fixedly connected with the sweeping scraping arm, the rotary carrying gear is rotationally arranged on the adsorption base through the horizontal bearing, the traction permanent magnet is arranged on the upper surface of the rotary carrying gear, the output rotating shaft is rotationally arranged on the bottom supporting bin, the output gear is arranged on the output rotating shaft, the output gear is in meshed connection with the rotary carrying gear, metal particles in the smoke gas are mainly composed of metal elements such as iron, chromium, nickel and the like, have certain ferromagnetism, and the metal particles can be separated from smoke gas by the electromagnetic adsorption device through the electromagnetic adsorption device by the adsorption device.
Further, the sliding adsorption system comprises a low-resistance sliding sheet, synchronous permanent magnets, a magnet limiting arm and a synchronous bolt, wherein the magnet limiting arm is fixedly connected with the sweeping scraping arm through the synchronous bolt, the synchronous permanent magnets are arranged on the magnet limiting arm, the low-resistance sliding sheet is arranged below the synchronous permanent magnets, the traction permanent magnets are in one-to-one correspondence with the synchronous permanent magnets, the traction permanent magnets are utilized to adsorb the synchronous permanent magnets to move, the traction permanent magnets are not in direct contact with the sliding platform, only the low-resistance sliding sheet is subjected to frictional resistance with the sliding platform in the sliding process, and energy loss during rotation is reduced.
Further preferably, the bottom support bin is provided with a diversion channel, and the diversion channel is communicated with the outer transportation bin at the same time.
Further, a transmission motor group is arranged in the bottom supporting bin, the output rotating shaft is in transmission connection with the transmission motor group, the transmission motor group drives the rotation carrying gear to rotate, and the traction permanent magnet adsorption sliding adsorption system on the rotation carrying gear is utilized to drive the sweeping scraping arm to collect metal particles adsorbed by the electromagnetic adsorption device into the particle drainage bin and the distribution channel, so that collection of the metal particles is realized.
Further, the granule conveyer includes transportation outer storehouse, granule conveyer belt and transport motor, the one end in transportation outer storehouse is located on the adsorption base, the other end in transportation outer storehouse is located on the bottom sprag storehouse, granule conveyer belt activity is located in the transportation outer storehouse, on the lateral wall in transportation outer storehouse was located to the transport motor, transport motor is connected with granule conveyer belt transmission simultaneously, and granule conveyer's setting can collect the metal particle of collecting and transport in the collection storehouse.
As a further preferred aspect of the present invention, the area in the middle of the inner vertical bin of the concentric array cooling bin is a central cooling section, the area at the bottom of the inner layer of the array partition bin is a deceleration section, the area between the array partition bin and the inner vertical bin of the concentric array cooling bin is a central auxiliary section, the area between the outer vertical bin of the concentric array cooling bin and the outer vertical bin of the concentric array cooling bin is an outer cooling section, the area between the outer vertical bin of the concentric array cooling bin and the outer gas circulation bin is a flue gas discharge section, the path of flue gas flowing is divided into a plurality of areas by the concentric array cooling bin and the array partition bin, and the inner diameter ratio of the inner vertical bin of the concentric array cooling bin, the outer vertical bin of the concentric array cooling bin and the outer gas circulation bin is close to 1:2:3:4, the horizontal sectional area ratio of the central cooling section, the central auxiliary section, the outer cooling section and the flue gas discharge section is approximate (the approximate value is taken because of the thickness of the metal wall) to be 1:3:5:7, can the flue gas hold the effective scope of flue gas can be from inside to outside increase gradually, and the flue gas is in the inside-out motion in-process, and speed reduction increases the contact time of flue gas and concentric array cooling storehouse to improve waste heat recovery efficiency.
As a further preferred mode of the invention, the control module adopts an STC89C52RC type singlechip, the control module is electrically connected with the transmission motor group, the electromagnetic adsorption device and the transportation motor, the control module controls the working state of the transmission motor group, the control module controls the working state of the electromagnetic adsorption device, and the control module controls the working state of the transportation motor.
The beneficial effects obtained by the invention by adopting the structure are as follows: the flue gas treatment device for ferrochrome production has the beneficial effects that:
(1) In order to solve the problem that the traditional equipment cannot recover metal particles in the flue gas, a manner of reducing the temperature by reducing the Brownian motion and electromagnetic adsorption is adopted, and a sedimentation type gas circulation device and a separation recovery device are arranged, so that the technical effect of separating the metal particles from the flue gas is realized, and the technical problem that the traditional equipment cannot separate and collect the metal particles from the flue gas is solved;
(2) According to the problems that the existing equipment is low in heat conversion efficiency and easy to rust when being contacted with water for a long time, a graphite heat conduction layer is arranged in a mode of taking graphite as an intermediate heat conduction substance, the graphite has ultrahigh heat conduction performance and can be contacted with circulating pure water and rapidly produce high-temperature steam, pure water can be prevented from being contacted with the inner metal wall of a concentric array cooling bin by taking graphite as the intermediate substance, oxidation of the inner metal wall is avoided, the thermal expansion coefficient of the graphite is also small, and equipment damage caused by volume expansion brought by heat conduction can be avoided;
(3) The separation recovery device is arranged, metal particles are adsorbed and collected through the electromagnetic adsorption recovery device and conveyed into the collection bin through the particle conveying device, the separation process is closed, leakage of smoke is avoided, and meanwhile, the metal particles are separated;
(4) The metal particles in the flue gas mainly comprise metal elements such as iron, chromium, nickel and the like, have certain ferromagnetism, and by utilizing the characteristic, the metal particles can be adsorbed by a magnetic field to be adsorbed and separated from the flue gas, meanwhile, an electromagnetic adsorption device is opened and closed at a certain frequency, so that the metal particles can be adsorbed and released in time, and the adsorbed metal particles are collected in time;
(5) The concentric array cooling bin and the array separation bin divide the flow path of the flue gas into a plurality of areas, so that the movement time of the flue gas is increased, the contact time of the flue gas and the concentric array cooling bin is prolonged, and the waste heat recovery efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a flue gas treatment device for ferrochrome production;
FIG. 2 is a cross-sectional view of a sedimentation type gas circulation device;
FIG. 3 is a schematic diagram of a concentric array cooling chamber and graphite heat conducting layer;
FIG. 4 is a cross-sectional view of the separation recovery device;
FIG. 5 is a schematic view of a part of the electromagnetic adsorption recovery apparatus;
FIG. 6 is a side view of the electromagnetic adsorption recovery apparatus;
FIG. 7 is a cross-sectional view of the electromagnetic adsorption recovery apparatus;
FIG. 8 is a cross-sectional view of a particle transport device;
FIG. 9 is an exploded view of a sliding adsorption system;
FIG. 10 is a schematic view of the positions of the inner and outer sweep areas;
FIG. 11 is a schematic view of a smoke movement zone;
FIG. 12 is an enlarged schematic view of structure A of FIG. 2;
fig. 13 is a connection relation block diagram of the control module.
Wherein, 1, a sedimentation type gas circulation device, 2, a separation recovery device, 3, a collection bin, 4, a control module, 101, a gas circulation outer bin, 102, a concentric array type cooling bin, 103, an air inlet channel, 104, a steam outlet, 105, a water inlet, 106, an air outlet channel, 107, a graphite heat conduction layer, 201, a bottom support bin, 202, an array separation bin, 203, an electromagnetic adsorption recovery device, 204, a particle transportation device, 205, a driving motor group, 206, an electromagnetic adsorption device, 207, an adsorption base, 208, a sliding platform, 209, a limit circular rail, 210, a sweeping scraping arm, 211, a sliding adsorption system, 212, a horizontal bearing, 213, a rotation carrying gear, 214, a traction permanent magnet, 215, an output gear, 216, an output rotating shaft, 217, a particle drainage bin, 218, a low-resistance sliding sheet, 219, a synchronous permanent magnet, 220, a magnet limiting arm, 221, a synchronous bolt, 222, a transportation outer bin, 223, a particle conveying belt, 224, a transportation motor, 225, a shunt channel, 226, an inner sweeping area, 227, an outer sweeping area, 228, a central cooling section, 229, a deceleration section, 230, a central auxiliary section, 231, an outer cooling section, 232 and a flue gas discharge section.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1, the invention provides a flue gas treatment device for ferrochrome production, which comprises a sedimentation type gas circulation device 1, a separation and recovery device 2, a collection bin 3 and a control module 4, wherein the sedimentation type gas circulation device 1 is arranged on the separation and recovery device 2, the collection bin 3 is arranged on one side of the separation and recovery device 2, and the control module 4 is arranged on the other side of the separation and recovery device 2.
As shown in fig. 1, 2, 3 and 12, the sedimentation type gas circulation device 1 comprises a gas circulation outer bin 101 and a concentric array type cooling bin 102, wherein the gas circulation outer bin 101 is arranged above the separation recovery device 2, the concentric array type cooling bin 102 is fixedly connected with the gas circulation outer bin 101, an air inlet channel 103 is arranged in the center of the concentric array type cooling bin 102, a steam outlet 104 is arranged on the right side of the top of the concentric array type cooling bin 102, and a water inlet 105 is arranged on the left side of the top of the concentric array type cooling bin 102; a graphite heat conduction layer 107 is arranged in the concentric array cooling bin 102; the circumferential side wall of the gas circulation outer bin 101 is provided with a gas outlet channel 106.
As shown in fig. 1 and 4, the separation and recovery device 2 includes a bottom support bin 201, an array separation bin 202, an electromagnetic adsorption recovery device 203, and a particle transport device 204, the bottom support bin 201 is disposed below the gas circulation outer bin 101, the array separation bin 202 is disposed at the top of the bottom support bin 201, the electromagnetic adsorption recovery device 203 is disposed on the bottom support bin 201, and the particle transport device 204 is disposed in the bottom support bin 201.
As shown in fig. 4, fig. 5, fig. 6 and fig. 7, the electromagnetic adsorption recovery device 203 comprises an electromagnetic adsorption device 206, an adsorption base 207, a sliding platform 208, a limit circular rail 209, a sweeping scraping arm 210, a sliding adsorption system 211, a horizontal bearing 212, a rotary carrying gear 213, a traction permanent magnet 214, an output gear 215, an output rotating shaft 216 and a particle drainage bin 217, wherein the adsorption base 207 is arranged in a bottom supporting bin 201, the electromagnetic adsorption device 206 is arranged above the adsorption base 207, the particle drainage bin 217 is arranged at the center of the electromagnetic adsorption device 206 and the adsorption base 207, the sliding platform 208 is arranged on the electromagnetic adsorption device 206, the sliding platform 208 is simultaneously arranged on the bottom supporting bin 201, the limit circular rail 209 is arranged on the sliding platform 208, the sweeping scraping arm 210 is rotationally arranged on the limit circular rail 209 through the limit circular rail 209, the sliding adsorption system 211 is fixedly connected with the scraping arm 210, the rotary carrying gear 213 is rotationally arranged on the adsorption base 207 through the horizontal bearing 212, the traction permanent magnet 214 is arranged on the upper surface of the rotary carrying gear 213, the output rotating shaft 216 is rotationally arranged on the bottom supporting bin 201, the output rotating shaft 215 is arranged on the output rotating shaft 216, the output rotating shaft 216 is meshed with the rotary carrying gear 213; a transmission motor group 205 is arranged in the bottom support bin 201, and an output rotating shaft 216 is in transmission connection with the transmission motor group 205.
As shown in fig. 5 and 9, the sliding adsorption system 211 includes a low-resistance slide 218, a synchronous permanent magnet 219, a magnet limiting arm 220 and a synchronous bolt 221, the magnet limiting arm 220 is fixedly connected with the sweeping wiper arm 210 through the synchronous bolt 221, the synchronous permanent magnet 219 is arranged on the magnet limiting arm 220, and the low-resistance slide 218 is arranged below the synchronous permanent magnet 219.
As shown in fig. 4 and 8, the particle transporting device 204 includes a transporting outer bin 222, a particle conveyer belt 223 and a transporting motor 224, one end of the transporting outer bin 222 is arranged on the adsorption base 207, the other end of the transporting outer bin 222 is arranged on the bottom supporting bin 201, the particle conveyer belt 223 is movably arranged in the transporting outer bin 222, the transporting motor 224 is arranged on the side wall of the transporting outer bin 222, and the transporting motor 224 is simultaneously connected with the particle conveyer belt 223 in a transmission way; the bottom support bin 201 is provided with a diversion channel 225, and the diversion channel 225 is simultaneously communicated with the outer transport bin 222.
As shown in fig. 10, the sweep wiper arm 210 divides the area on one side of the particle drainage bin 217 into an inner sweep area 226 and the area on the other side of the sweep wiper arm 210 is an outer sweep area 227.
As shown in fig. 11, the central cooling section 228 is the region between the inner vertical chambers of the concentric array cooling chamber 102, the deceleration section 229 is the region at the bottom of the inner layer of the array partition chamber 202, the central sub-section 230 is the region between the array partition chamber 202 and the inner vertical chambers of the concentric array cooling chamber 102, the outer cooling section 231 is the region between the array partition chamber 202 and the outer vertical chambers of the concentric array cooling chamber 102, and the flue gas discharge section 232 is the region between the outer vertical chambers of the concentric array cooling chamber 102 and the gas circulation outer chamber 101.
As shown in fig. 13, the control module 4 is electrically connected with the driving motor set 205, the electromagnetic adsorption device 206 and the transportation motor 224, the control module 4 controls the working state of the driving motor set 205, the control module 4 controls the working state of the electromagnetic adsorption device 206, and the control module 4 controls the working state of the transportation motor 224.
When the device is specifically used, firstly, the device is connected to a flue gas outlet, a flue gas pipeline is connected to an air inlet channel 103, a steam outlet 104 is connected with a boiler pipeline, pure water is connected to a water inlet 105, the pure water enters a concentric array type cooling bin 102 through the water inlet 105, in the concentric array type cooling bin 102, the pure water is only in contact with a graphite heat conducting layer 107 and is not in contact with the metal inner wall of the concentric array type cooling bin 102, so that oxidation of the metal inner wall is avoided, meanwhile, the ultrahigh heat conducting performance of graphite can be in contact with circulating pure water and can rapidly produce high-temperature steam, the thermal expansion coefficient is also small, the volume expansion caused by heat conduction can be avoided, the concentric array type cooling bin 102 is propped open from the inside, the strength of graphite is enhanced along with the temperature improvement, and the graphite heat conducting layer 107 is prevented from being propped open by the pressure of steam; when the flue gas enters the central cooling section 228 of the concentric array cooling bin 102 along with the air inlet channel 103, the heat of the flue gas is firstly transferred to the concentric array cooling bin 102 and then transferred to pure water through the graphite heat conducting layer 107, and the pure water is heated and vaporized and is discharged through the steam outlet 104; in the descending process of the flue gas, when the temperature is gradually reduced and reaches the position of the deceleration section 229 at the center bottom of the array separation bin 202, the flow speed is reduced, the Brownian motion of various particles in the flue gas is reduced in a cooling and deceleration mode, and the carrying performance of the air flow on the particles is reduced; meanwhile, the control module 4 starts the electromagnetic adsorption device 206, the electromagnetic adsorption device 206 generates a magnetic field in the vertical direction, and as metal particles in ferrochrome flue gas mainly consist of metal elements such as iron, chromium, nickel and the like, have certain ferromagnetism and can be adsorbed by the magnetic field, the metal particles are adsorbed to the surface of the electromagnetic adsorption device 206 along with the flue gas in the descending process of the concentric array cooling bin 102 under the influence of gravity and magnetic field suction, and as the metal particles in the flue gas are reduced, the flow speed of the flue gas is reduced, the abrasion of cavitation on the surfaces of the concentric array cooling bin 102 and the array separation bin 202 can be effectively reduced, and the service life of the invention is greatly prolonged; when the metal particles are adsorbed on the surface of the electromagnetic adsorption device 206, the control module 4 starts the operation of recovering the particles, the drive motor 205 starts to drive the output rotating shaft 216 to rotate, the output rotating shaft 216 rotates to drive the output gear 215 to rotate, the output gear 215 rotates to drive the rotation carrying gear 213 to rotate, the rotation carrying gear 213 rotates to drive the traction permanent magnet 214 to rotate circumferentially, the rotation of the traction permanent magnet and the adsorption synchronous permanent magnet 219 rotate circumferentially together, the rotation of the synchronous permanent magnet 219 drives the sweeping scraping arm 210 to rotate along with the rotation of the sweeping scraping arm 210, the metal particles in the inner sweeping area 226 are swept into the particle drainage bin 217 by the sweeping scraping arm 210, the metal particles in the outer sweeping area 227 are swept into the diversion channel 225 by the sweeping scraping arm 210, the metal particles fall onto the particle conveying belt 223 of the particle conveying device 204 from the particle drainage bin 217 and the diversion channel 225, the control module 4 starts the conveying motor 224, the conveying motor 224 starts to drive the particle conveying belt 223 to rotate, and the particle conveying belt 223 drives the collected metal particles to be conveyed into the collection bin 3; meanwhile, in order to match with metal particles, the electromagnetic adsorption device 206 can be better swept by the sweeping scraping arm 210, and the control module 4 controls the electromagnetic adsorption device 206 to be opened and closed at a certain frequency, so that the metal particles can be adsorbed and simultaneously released in time; when the flue gas is decelerated by the deceleration section 229 and then moves to the center auxiliary section 230, the flue gas is cooled again by the concentric array cooling bin 102, after the flue gas passes through the array separation bin 202, the flue gas enters the outer cooling section 231 to be cooled again, finally, the cooled flue gas is discharged from the air outlet channel 106 through the flue gas discharge section 232, and when the flue gas is transited between the center auxiliary section 230 and the outer cooling section 231, high-temperature flue gas (low density) floats above low-temperature flue gas (high density) and can be converged into a small high-temperature area at the tops of the center auxiliary section 230 and the outer cooling section 231, the temperature of the area is transferred to the graphite heat conducting layer 107 by the concentric array cooling bin 102, and then the graphite heat conducting layer 107 is transferred to pure water, residual heat is collected again by the small high-temperature area to absorb heat again, and heat recovery efficiency is improved.
The above is a specific workflow of the present invention, and the next time the present invention is used, the process is repeated.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (8)
1. A flue gas treatment device for ferrochrome production is characterized in that: the device comprises a sedimentation type gas circulation device (1), a separation and recovery device (2), a collection bin (3) and a control module (4), wherein the sedimentation type gas circulation device (1) is arranged on the separation and recovery device (2), the collection bin (3) is arranged on one side of the separation and recovery device (2), and the control module (4) is arranged on the other side of the separation and recovery device (2); the separation and recovery device (2) comprises a bottom support bin (201), an array separation bin (202), an electromagnetic adsorption recovery device (203) and a particle transport device (204), wherein the bottom support bin (201) is arranged below the sedimentation type gas circulation device (1), the array separation bin (202) is arranged at the top of the bottom support bin (201), the electromagnetic adsorption recovery device (203) is arranged on the bottom support bin (201), and the particle transport device (204) is arranged in the bottom support bin (201); the sedimentation type gas circulation device (1) comprises a gas circulation outer bin (101) and a concentric array type cooling bin (102), wherein the gas circulation outer bin (101) is arranged above the separation recovery device (2), and the concentric array type cooling bin (102) is fixedly connected with the gas circulation outer bin (101); and a graphite heat conduction layer (107) is arranged inside the concentric array cooling bin (102).
2. A flue gas treatment device for ferrochrome production according to claim 1, wherein: the electromagnetic adsorption recovery device (203) comprises an electromagnetic adsorption device (206), an adsorption base (207), a sliding platform (208), a limiting circular rail (209), a sweeping scraping arm (210), a sliding adsorption system (211), a horizontal bearing (212), a rotary carrying gear (213), a traction permanent magnet (214), an output gear (215), an output rotating shaft (216) and a particle drainage bin (217), wherein the adsorption base (207) is arranged in a bottom supporting bin (201), the electromagnetic adsorption device (206) is arranged above the adsorption base (207), the particle drainage bin (217) is arranged at the center of the electromagnetic adsorption device (206) and the adsorption base (207), the sliding platform (208) is arranged on the electromagnetic adsorption device (206), the sliding platform (208) is simultaneously arranged on the bottom supporting bin (201), the limiting circular rail (209) is arranged on the sliding platform (208), the sweeping scraping arm (210) is rotationally arranged on the limiting circular rail (209) through the limiting circular rail (209), the sliding adsorption system (211) is fixedly connected with the sweeping scraping arm (210), the rotary carrying gear (213) is rotationally arranged on the rotary carrying gear (213) through the horizontal carrying gear (213) and the rotary carrying gear (213) on the surface of the permanent magnet (213), the output rotating shaft (216) is rotatably arranged on the bottom supporting bin (201), the output gear (215) is arranged on the output rotating shaft (216), and the output gear (215) is meshed with the rotation carrying gear (213).
3. A flue gas treatment device for ferrochrome production according to claim 2, wherein: the bottom support bin (201) is internally provided with a transmission motor group (205), and the output rotating shaft (216) is in transmission connection with the transmission motor group (205).
4. A flue gas treatment device for ferrochrome production according to claim 3, wherein: the sliding adsorption system (211) comprises a low-resistance sliding sheet (218), a synchronous permanent magnet (219), a magnet limiting arm (220) and a synchronous bolt (221), wherein the magnet limiting arm (220) is fixedly connected with the sweeping scraping arm (210) through the synchronous bolt (221), the synchronous permanent magnet (219) is arranged on the magnet limiting arm (220), and the low-resistance sliding sheet (218) is arranged below the synchronous permanent magnet (219).
5. The flue gas treatment device for ferrochrome production according to claim 4, wherein: the particle conveying device (204) comprises an outer conveying bin (222), a particle conveying belt (223) and a conveying motor (224), one end of the outer conveying bin (222) is arranged on the adsorption base (207), the other end of the outer conveying bin (222) is arranged on the bottom supporting bin (201), the particle conveying belt (223) is movably arranged in the outer conveying bin (222), the conveying motor (224) is arranged on the side wall of the outer conveying bin (222), and the conveying motor (224) is simultaneously connected with the particle conveying belt (223) in a transmission mode.
6. The flue gas treatment device for ferrochrome production according to claim 5, wherein: and the bottom support bin (201) is provided with a diversion channel (225), and the diversion channel (225) is simultaneously communicated with the transportation outer bin (222).
7. The flue gas treatment device for ferrochrome production according to claim 6, wherein: an air inlet channel (103) is arranged in the center of the concentric array cooling bin (102), a steam outlet (104) is arranged on the right side of the top of the concentric array cooling bin (102), and a water inlet (105) is arranged on the left side of the top of the concentric array cooling bin (102); and an air outlet channel (106) is arranged on the circumferential side wall of the air circulation outer bin (101).
8. The flue gas treatment device for ferrochrome production according to claim 7, wherein: the transmission motor group (205), the electromagnetic adsorption device (206) and the transport motor (224) are electrically connected with the control module (4).
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| CN112191363A (en) * | 2020-12-03 | 2021-01-08 | 潍坊国特矿山设备有限公司 | Vertical ring high gradient magnetic separator |
| CN214308200U (en) * | 2020-12-25 | 2021-09-28 | 湖南金炉科技股份有限公司 | Heat treatment kiln with circulating cooling system |
| WO2022148096A1 (en) * | 2021-01-08 | 2022-07-14 | 江苏博迁新材料股份有限公司 | Cooling-type solid-liquid separation apparatus for magnetic powder |
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